Chevrolet Silverado is GM's best-selling vehicle and has earned its reputation for top-notch performance, dependability and capability. Silverado also is known for having one of the broadest model ranges in the industry, with a diverse array of body styles and powertrains that combine to create the vehicles to meet every full-size pickup customer's needs, whether professional or personal.

The Silverado Heavy Duty models have a new front-end appearance, with a revised grille design and a new, power dome hood. A prominent gold bowtie is centered on a new, dual-port grille design, while the power dome hood – a design borrowed from Silverado 3500 models – conveys strength. The new front end has a refined look, with a body-color bumper top cap, while the power dome hood gives all Silverado models a strong, cohesive appearance.

Chevy Silverado HD pickups comprise the segment's most diverse lineup of workhorse pickups, with a wide selection of weight ratings, body styles and powertrain combinations including diesel and compressed natural gas (CNG) models. At the top of the gasoline engine range is the available Vortec 8100 8.1L V-8, rated at 330 hp (246 kw) and 450 lb.-ft. (610 Nm) of torque. The available Duramax Diesel engine is enhanced for ’06 for improved performance, smoothness and quiet.

With impressive power, tough frames, advanced suspensions and high-capacity brakes, the 2500HD/3500 Series provides outstanding payload capacities as well as outstanding hauling and towing capabilities. The three-quarter-ton models have a GVWR as much as 9,200 pounds (4,173 kg), and payloads up to 3,964 pounds (1,798 kg). The one-ton pickup models have a GVWR up to 11,400 pounds (5,171 kg) and payloads up to 5,753 pounds (2,610 kg).

For chassis cab models, Silverado HD has an 11,400-pound (5,171-kg) GVWR for 2WD versions and a 12,000-pound (5,443 kg) GVWR when equipped with 4WD. Chassis cabs provide payloads up to 6,089 pounds (2,762 kg).